the skin bug

hi i wanted to reflect on a bug that is happening tiredo with me and my friend our skin are bugging and me he is with the same skin all the time and we are only in sever and we change skins directly by sever the bug gets worse and decha skin  invisible and I couldn't know where you are when you put a block you know or when you put the skin on steve si my friend tells me that he is ready to see me so I don't know where my skin is because it is buggy and invisible